body,ol,ul,h1,h2,h3,h4,h5,h6,p,th,td,dl,dd,form,fieldset,legend,input,textarea,select{
    margin: 0;
    padding: 0;
}
body{
    font: .12rem "微软雅黑","Arial Narrow",HELVETICA;
    background: #000;
}
a{
    color: #333;
    text-decoration: none;
}
img{
    vertical-align: middle;
    border : none;
}
strong,b{
    font-weight: normal;
}
em,i{
    font-style: normal;
}
ul,li,ol{
    list-style: none;
}
input,textarea{
    /* 聚焦出现的边框 */
    outline: none;
}
textarea{
    /* 禁止用户改变尺寸 */
    resize: none;
}
